CVE-2026-24416: Devcode Openstamanager SQLi Vulnerability

CVE-2026-24416 Overview

CVE-2026-24416 is a critical Time-Based Blind SQL Injection vulnerability affecting OpenSTAManager, an open source management software used for technical assistance and invoicing. The vulnerability exists in OpenSTAManager v2.9.8 and earlier versions, specifically in the article pricing completion handler where the application fails to properly sanitize the idarticolo parameter before incorporating it into SQL queries.

This vulnerability allows authenticated attackers to inject arbitrary SQL commands through the unsanitized input parameter. By leveraging time-based Boolean inference techniques, attackers can systematically extract sensitive data from the underlying database, including customer information, financial records, and authentication credentials stored within the OpenSTAManager database.

Critical Impact

Attackers can exploit this SQL Injection vulnerability to extract sensitive business data, customer information, and potentially gain unauthorized access to the entire database through time-based blind injection techniques.

Affected Products

• Devcode OpenSTAManager versions up to and including v2.9.8
• All OpenSTAManager installations using the vulnerable article pricing completion handler
• Any deployment with network-accessible OpenSTAManager web interface

Discovery Timeline

• 2026-02-06 - CVE-2026-24416 published to NVD
• 2026-02-09 - Last updated in NVD database

Technical Details for CVE-2026-24416

Vulnerability Analysis

This Time-Based Blind SQL Injection vulnerability stems from improper input validation in the article pricing completion handler component of OpenSTAManager. The idarticolo parameter, which is used to identify specific articles in the pricing system, is directly incorporated into SQL queries without adequate sanitization or parameterization.

Time-based blind SQL injection is a particularly stealthy attack technique where attackers cannot see direct output from injected queries. Instead, they infer information by observing response time differences when conditional SQL statements evaluate to true versus false. The attacker constructs payloads that cause deliberate delays (using database functions like SLEEP() in MySQL or WAITFOR DELAY in MSSQL) when specific conditions are met.

The vulnerability requires low privileges to exploit, meaning an authenticated user with basic access to the OpenSTAManager system can leverage this flaw. Given the network-based attack vector, any OpenSTAManager instance exposed to the network becomes a potential target for data exfiltration.

Root Cause

The root cause of CVE-2026-24416 is the failure to implement proper input sanitization and parameterized queries when handling the idarticolo parameter. The application directly concatenates user-supplied input into SQL query strings, violating secure coding practices outlined in CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).

This represents a fundamental input validation failure where user-controlled data flows directly into a security-sensitive operation without proper encoding, validation, or use of prepared statements that would prevent SQL injection attacks.

Attack Vector

The attack vector for this vulnerability is network-based, requiring authenticated access to the OpenSTAManager web interface. An attacker with valid credentials (even low-privilege accounts) can target the article pricing completion handler endpoint.

The attacker manipulates the idarticolo parameter by injecting SQL syntax that includes time-delay functions. By systematically constructing queries that conditionally delay responses based on database content, the attacker can extract data one character at a time. For example, testing whether the first character of an admin password hash equals 'a' by measuring if the response takes longer than normal.

This attack method is particularly dangerous because it leaves minimal traces in application logs compared to error-based SQL injection, and the data exfiltration occurs through timing channels rather than visible output. For detailed technical information about this vulnerability, see the GitHub Security Advisory.

Detection Methods for CVE-2026-24416

Indicators of Compromise

• Unusual response time patterns in requests to the article pricing completion handler endpoint
• Multiple sequential requests to the same endpoint with varying idarticolo parameter values containing SQL syntax
• Database query logs showing unexpected SLEEP(), BENCHMARK(), or WAITFOR DELAY function calls
• Abnormal database CPU utilization patterns correlating with web requests

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect SQL injection patterns in the idarticolo parameter
• Implement database query logging and monitor for time-delay SQL functions in queries originating from OpenSTAManager
• Configure anomaly detection for HTTP requests with unusually consistent response time distributions
• Review application access logs for patterns of repeated requests to the pricing completion handler with suspicious parameter values

Monitoring Recommendations

• Enable detailed logging for all database queries executed by the OpenSTAManager application
• Monitor authentication logs for compromised accounts that may be used to exploit this vulnerability
• Set up alerts for response time anomalies exceeding typical thresholds on the affected endpoint
• Implement network traffic analysis to detect automated SQL injection tool signatures

How to Mitigate CVE-2026-24416

Immediate Actions Required

• Upgrade OpenSTAManager to the latest patched version immediately if available from the vendor
• Restrict network access to OpenSTAManager instances to trusted IP ranges only
• Review database access logs for signs of exploitation since deployment of vulnerable versions
• Implement Web Application Firewall rules to block SQL injection attempts targeting the idarticolo parameter
• Consider temporarily disabling the article pricing completion handler if business operations permit

Patch Information

Users should consult the official GitHub Security Advisory for patch availability and upgrade instructions. The vendor advisory contains specific remediation guidance for this vulnerability. Organizations running OpenSTAManager v2.9.8 or earlier should prioritize upgrading to a patched version that implements proper parameterized queries.

Workarounds

• Deploy a Web Application Firewall with SQL injection detection rules in front of OpenSTAManager
• Implement input validation at the web server or reverse proxy level to filter dangerous characters from the idarticolo parameter
• Restrict database user permissions for the OpenSTAManager application to minimum required privileges
• Enable database audit logging to detect and alert on suspicious query patterns
• Consider network segmentation to isolate OpenSTAManager from direct internet access

# Example WAF rule concept for ModSecurity to block SQL injection in idarticolo
# Add to your ModSecurity configuration
SecRule ARGS:idarticolo "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in idarticolo parameter - CVE-2026-24416'"